#include <iostream>
#include <cstring>

//类
class Student
{
public:
    void SetID(int id) //成员方法
    {
        m_id = id;
    }

    void SetName(const char *name)
    {
        strncpy(m_name,name,19);
    }

    void show()
    {
        std::cout<<m_id<<" "<<m_name<<std::endl;
    }

private:
    int m_id;  //成员变量
    char m_name[20];

};

struct test //默认访问权限：公有
{
    int a;
    int b;
};
class Test //默认访问权限：私有
{
    int a;
    int b;
};

int main()
{
    Student s;
    s.SetID(1);
    s.SetName("zhangsan");
    s.show();
    

    return 0;
}